DORTMUND, GERMANY - SEPTEMBER 16: Hector Bellerin (R) of Arsenal challenges Pierre-Emerick Aubameyang (C) of Borussia Dortmund during the UEFA Champions League Group D match between Borussia Dortmund and Arsenal at Signal Iduna Park on September 16, 2014 in Dortmund, Germany. (Photo by Boris Streubel/Getty Images)
